import java.util.Scanner;

public class XiaoMing_grade {
    public static void main(String[] args) {
        while (true) {
            Scanner sc = new Scanner(System.in);
            System.out.println("请输入小明的成绩");
            double score = sc.nextDouble();
            if (score < 0 || score > 100) {
                System.out.println("成绩输入错误,请重新输入");
            } else {
                if (score >= 95 && score <= 100) {
                    System.out.println("奖励小明一辆自行车");
                } else if (score >= 90 && score <= 94) {
                    System.out.println("奖励小明去游乐园玩一天");
                } else if (score >= 80 && score <= 89) {
                    System.out.println("奖励小明一个变形金刚玩具");
                } else {
                    System.out.println("奖励小明一顿混合双打");
                }
                break;
            }
        }
    }
}
